-4) 12x+30= 3xー12

Algebra and Trigonometry (6th Edition)
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ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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### Simplifying Algebraic Expressions: Step-by-Step Guide

In this example, we'll walk through the process of simplifying an algebraic expression involving distribution and combining like terms.

#### Original Equation:
\[ 6(2x + 5) - 3(x + 4) \]

#### Step-by-Step Solution:

1. **Distribute (Expand) the Expression:**
   - Apply the distributive property to each term inside the parentheses.
   \[ 6(2x + 5) \rightarrow 12x + 30 \]
   \[ -3(x + 4) \rightarrow -3x - 12 \]

2. **Rewrite the Expanded Expression:**
   \[ 12x + 30 - 3x - 12 \]

3. **Combine Like Terms:**
   - Combine the \( x \)-terms \((12x - 3x)\):
     \[ 12x - 3x = 9x \]
   - Combine the constant terms \((30 - 12)\):
     \[ 30 - 12 = 18 \]

4. **Simplified Expression:**
   \[ 9x + 18 \]

By following these steps, we've simplified the expression from \( 6(2x + 5) - 3(x + 4) \) to \( 9x + 18 \). This process includes distributing, rewriting, and combining like terms to achieve the final simplified form.

### Diagram Description:
- There are arrows indicating the steps of distribution.
- Each part of the expression is clearly shown being multiplied and then simplified step by step.
- This visual representation helps in understanding the application of the distributive property and combining like terms.

This example will help you simplify similar algebraic expressions by applying these fundamental algebraic concepts.
Transcribed Image Text:### Simplifying Algebraic Expressions: Step-by-Step Guide In this example, we'll walk through the process of simplifying an algebraic expression involving distribution and combining like terms. #### Original Equation: \[ 6(2x + 5) - 3(x + 4) \] #### Step-by-Step Solution: 1. **Distribute (Expand) the Expression:** - Apply the distributive property to each term inside the parentheses. \[ 6(2x + 5) \rightarrow 12x + 30 \] \[ -3(x + 4) \rightarrow -3x - 12 \] 2. **Rewrite the Expanded Expression:** \[ 12x + 30 - 3x - 12 \] 3. **Combine Like Terms:** - Combine the \( x \)-terms \((12x - 3x)\): \[ 12x - 3x = 9x \] - Combine the constant terms \((30 - 12)\): \[ 30 - 12 = 18 \] 4. **Simplified Expression:** \[ 9x + 18 \] By following these steps, we've simplified the expression from \( 6(2x + 5) - 3(x + 4) \) to \( 9x + 18 \). This process includes distributing, rewriting, and combining like terms to achieve the final simplified form. ### Diagram Description: - There are arrows indicating the steps of distribution. - Each part of the expression is clearly shown being multiplied and then simplified step by step. - This visual representation helps in understanding the application of the distributive property and combining like terms. This example will help you simplify similar algebraic expressions by applying these fundamental algebraic concepts.
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